Sea barley (Hordeum marinum)

Sea barley

Also known as: Seaside barley, Mediterranean barley grass

Sea barley is often found in coastal regions and wet areas, which explains marinum from its Latin name, which means "of the sea". Sea barley is considered invasive in California, USA. The numbers have decreased in Britain due to the increase of arable land and the infilling of ditches and pools.

Scientific classification

Species

Sea barley (Hordeum marinum)

Grasses, sedges and allies

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Annual

Lifespan

Grass

Plant Type

Yellow, Green, Brown

Flower Color

Semi-evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Sea barley

Distribution of Sea barley

Distribution Map

Sea barley is indigenous to coastal regions across the Mediterranean and Black Sea, extending through parts of Eurasia, and into the Middle East and North Africa. It has been introduced to various temperate zones, including those in the southern hemisphere, broadening its presence to continents such as South America, North America, Asia, and Oceania. Sea barley is not just found in the wild but is also cultivated in some of these regions.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Coast, salt marshes, sandy or stony areas

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Sea barley

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Sea barley flourishes in humid environments and prefers consistent moisture while being able to tolerate moderate drought. Weekly watering is ideal for optimal growth, and outdoor cultivation in containers allows for better monitoring of its water intake.

Pruning: Adaptable to saline soils, sea barley thrives with spring pruning to enhance growth. Remove damaged parts and overgrown stems for a compact shape. This timing supports recovery and reduces fungal disease risks by improving air circulation and preventing overcrowding.

Propagation: Sea barley can be propagated by sowing seeds, which need a light-exposed surface placement for optimal germination in a well-draining substrate. After seedlings establish a strong root system, gently transplant to the final location to support healthy growth, minimizing root disturbance.

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